问如何在Java中安全地访问数组线程？

EN

List<String> list = 
         Collections.synchronizedList(new ArrayList<String>());

       //Adding elements to synchronized ArrayList
       list.add("Item1");
       list.add("Item2");
       list.add("Item3"); 

synchronized(list) {
       Iterator<String> iterator = list.iterator(); 
       while (iterator.hasNext())
       System.out.println(iterator.next());
}  

void add(){
 syncronized(LOCK) {
  // add
 }
}

void get(int i){
 synchronized(LOCK){ 
   // return
 }
}

java.util.concurrent.*